DE102015014860A1 - Wheel lock axle and bicycle hub assembly - Google Patents

Abstract

A wheel securing shaft includes a shaft including a first end portion, a second end portion including a thread, a shaft axis, a disk rotatably supported by the first end portion of the shaft, and a click mechanism disposed between the shaft and the disk ,

Description

This application claims the priority of U.S. Pat. Patent Application No. 14 / 543,913, filed November 18, 2014. The entire disclosure of U.S. Pat. Patent Application No. 14 / 543,913 is hereby incorporated herein by reference.

TECHNICAL AREA

The present invention relates to a wheel securing axle and a bicycle hub assembly.

BACKGROUND INFORMATION

A typical bicycle wheel is coupled to a hub post of a bicycle frame by a bicycle hub assembly. A bicycle hub assembly includes a hub shell, a hollow hub shaft, and a wheel securing shaft. A wheel rim is supported by spokes on the hub shell. For example, the hub shell is rotatably supported by a bearing on the hollow hub shaft. The bicycle safety axle is inserted through the hollow hub shaft. The wheel securing shaft includes a head (base portion) and a threaded distal portion protruding from the opposite ends of the hollow hub shaft in the axial direction. The threaded distal portion of the wheel lock shaft is engaged with a nut or a threaded through hole of the hub supported. This couples the wheel lock axle to the bicycle frame. The US Pat. No. 6886894 according to Kanehisa, which is hereby incorporated by reference, describes an example of a conventional wheel lock axle.

SUMMARY OF THE INVENTION

A first aspect of a wheel securing axle according to the present invention includes a shaft including a first end portion, a second end portion, a thread, a shaft axis, a disk rotatably supported by the first end portion of the shaft, and a click mechanism interposed between the shaft and the disc is arranged.

In one example, the click mechanism is configured to allow the shaft to rotate about the shaft axis when the disc is in contact with a fixed surface and is prevented from rotating relative to the fixed surface.

In one example, the click mechanism is configured such that the disk rotates integrally with the shaft, at least when the disk is not in contact with the fixed surface.

In one example, the wheel lock axle further includes a housing coupled to the first end portion and receiving at least a portion of the disk. The click mechanism is configured such that the shaft rotates integrally with the housing and the disc, at least when the disc is not in contact with the fixed surface.

In one example, the click mechanism includes at least a first click member formed on one of the disk and the housing and at least one second click member formed on the other of the disk and the housing and a bias member elastically coupling the housing Impacted disc in an axial direction, such that the click element is elastically engaged with the second click element / passes.

In one example, the at least one first click element is a plurality of protrusions formed about the shaft axis at equal angular intervals. Each of the projections includes first and second inclined surfaces which are inclined at different angles, and a peak formed between the first and second inclined surfaces.

In one example, the at least one second click element is a plurality of recesses formed around the shaft axis at equal angular intervals, each of the recesses includes third and fourth inclined surfaces which are inclined at different angles and a ground, which is formed between the third and fourth inclined surfaces.

In one example, the urging member urges the housing to the disk such that the housing is movable in the axial direction relative to the disk.

In one example, the housing is supported by the shaft such that the housing is rotatable about the shaft axis together with or free from the disk.

In one example, the shaft includes a built-in socket formed on an end surface of the first end portion, and the housing includes a center hole that allows a rotary tool to physically access the installed socket.

In one example, the shaft includes a shaft opening formed in an end surface of the first end portion. The wheel lock axle further includes a socket fitted in the shaft hole. The click mechanism includes at least a first click member formed on one of the socket and the housing, at least one second click member formed on the other of the socket and the housing, and a bias member disposed in the shaft opening and the socket added thereto Housing applied in an axial direction, such that the first click element is engaged with the second click element / arrives.

In one example, the socket is a cup-shaped socket that includes a socket opening and an outer flange. The housing includes an inner flange that includes a center hole that allows a lathe tool to physically access the socket opening. The at least one first click element and the at least one second click element are formed on the outer flange of the socket and the inner flange of the housing.

In one example, the at least one first click element is a plurality of protrusions formed at equal angular intervals about the shaft axis. Each of the projections includes first and second inclined surfaces which are inclined at the same angle or different angle, and a peak formed between the first and second inclined surfaces.

In one example, the at least one second click element is a plurality of recesses formed at equal angular intervals about the shaft axis. Each of the recesses includes third and fourth inclined surfaces inclined at the same angle or at different angles, and a bottom formed between the third and fourth inclined surfaces.

In one example, the socket is movable in the axial direction relative to the shaft when the disc is in contact with the fixed surface.

In one example, the disc, housing and socket are integrally movable in the axial direction relative to the shaft, at least when the disc is not in contact with the fixed surface.

In one example, the shaft includes a shaft peripheral surface that supports the disc such that the disc is movable in the axial direction and a disc stopper projecting from the shaft circumferential surface in a radially outward direction and restricts the movement of the disc in the axial direction by contacting the disc in the axial direction. The click mechanism includes a bias member which generates an elastic repulsive force in the axial direction to allow the disk stopper to rotate relative to the disk while it contacts the disk when the disk is in contact with the specified surface.

In one example, the disk is a cup-shaped disk surrounding an outside of the disk stopper.

In one example, the disc includes a non-smooth surface that contacts the fixed surface and a smooth surface that contacts the disc stopper.

In one example, the wheel securing axle further includes an elastic member disposed on the second end portion of the shaft adjacent to a thread distal side to prevent disengagement of the shaft. The elastic member has a maximum outer dimension which is larger than a diameter of the thread, the elastic member is capable of being elastically compressed to the diameter of the thread or less.

In one example, the shaft is a hollow body that includes a central passageway.

Another aspect of the present invention provides a bicycle hub assembly which includes: the above wheel securing axle, a hub shaft including a hub axle and secured to a bicycle frame by the wheel securing shaft, and a hub shell supported by the hub shaft around at least the hub axle to be rotatable.

Other aspects and advantages of the invention will become apparent to those skilled in the art from the following description when taken in conjunction with the accompanying drawings which illustrate the principles of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

New features of the invention will become apparent from the appended claims. The invention, together with the objects and advantages thereof, will be best understood by reference to the following description and the presently preferred embodiment, taken in conjunction with the accompanying drawings, in which:

1 a side view of the first embodiment of a Radsicherungsachse;

2 and 3 a perspective view of the wheel lock axle of 1 is;

4 and 5 an exploded perspective view of the wheel lock axle of 1 is;

6 is a perspective view of a disc;

7 is a perspective view of a housing, which includes a click element;

8th is a perspective view of a socket, which includes a click element;

9 to 11 Are partial cross-sectional views of the wheel lock axle;

12 is a side view of a second embodiment of a Radsicherungsachse;

13 and 14 exploded perspective views of the wheel lock axle of 12 are;

15 is a perspective view of a housing, which includes a click element;

16 is a perspective view of a disc which includes a click element;

17 to 19 Partial cross-sectional views of the wheel lock axle of 12 are;

20 is a perspective view of an elastic member;

21 Fig. 12 is a perspective view of a modified example of the elastic member;

22 is a cross-sectional view illustrating the use of the elastic element of 21 illustrated; and

23 an exploded perspective view illustrating a bicycle hub assembly.

EMBODIMENTS OF THE INVENTION

Several embodiments of a wheel securing axle will now be described with reference to the drawings.

As in the 1 to 3 shown, includes a first embodiment of a Radsicherungsachse 10 a base section 12 (also referred to as a head) and a threaded distal section 14 , A bicycle frame 100 includes hub supports 100a and 100b , The wheel lock axle 10 is on the bike frame 100 through the hub supports 100a and 100b secured. The base section 12 the wheel lock axle 10 is against a fixed area 104 pressed in the axial direction. The specified area 104 can be a side surface of the bicycle frame 100 be. The hub support 100a The first embodiment includes a through hole 102 , The hub support 100b includes a female threaded through hole 102b ,

As in the 4 and 5 shown, includes the wheel lock axle 10 a wave 20 (also called a pointed wave), a disc 30 and a click mechanism 40 ,

The wave 20 includes a first end portion 22 , a second end portion 24 , which includes threads, and a shaft axis AX. As in 5 shown, includes the shaft 20 a shaft opening 22c in an end-face 22a the first end portion 22 , The shaft opening 22c is not circular and is for example a hexagonal hole.

The wave 20 The first embodiment includes a shaft peripheral surface 26 and a disc stopper 22b which extends from the wave peripheral surface 26 extends in a radial outward direction. The axial movement of the control shaft 30 is restricted when the disc stopper 22b in contact with the disc 30 in the axial direction stands / arrives. Although not particularly limited, the disc stopper can 22b a flange or a projection. The disc stopper 22b may be a section of the shaft or a desired component different from the shaft 20 For example, be a C-shaped ring, which in a groove, which in the Wellenumfangsfläche 26 is formed, is attached.

The disc 30 is from the second end portion 24 to the first end portion 22 along the wave peripheral surface 26 moves and is connected to the shaft 20 at the first end portion 22 coupled. As in the 4 to 6 shown, includes the disc 30 a smooth surface 32 and a non-smooth surface 34 , The not smooth surface 34 the disc 30 touches the specified area 104 of the bicycle frame 100 (In reference to 1 ). Although not particularly limited, the non-smooth surface 34 for example, a rough surface, a knurled surface, a surface including regular or irregular protrusions, or a surface including regular or irregular grooves. The smooth surface 32 the disc 30 touches the disc stopper 22b , The disc 30 is through the first end section 22 the wave 20 rotatably supported when the disc stopper 22 touched. The disc 30 is cup-shaped and surrounds an outside of the disc stopper 22b , The disc 30 includes at least one projection 38 which is made of a rim 36 projecting in the radial outward direction. The disc 30 The first embodiment includes a plurality of protrusions 38 , which with same Angular distances are arranged. Every lead 38 extends in a straight line and in a direction parallel to the shaft axis AX.

As in the 4 and 5 shown are a housing 50 , a version 60 and a driver 70 at the first end portion 22 the wave 20 coupled.

Referring to the 4 . 5 and 7 takes the case 50 at least a section of the disc 30 on. The housing 50 includes grooves 52 which the projections 38 intervention. The engagement of the projections 38 and the grooves 52 rotate integrally with the housing 50 and the disc 30 , The housing 50 includes an inner flange 54 , which a center hole or center hole 51 Are defined.

As in the 4 . 5 and 8th shown, contains the version 60 a wave 62 which is in the shaft opening 22c the wave 20 is fit. The wave 62 The first embodiment is hexagonal and includes six engagement surfaces or corners corresponding to the shaft opening 22c , The version 60 includes a socket opening 68 which is in communication with the center hole 51 of the housing 50 stands. The socket opening 68 serves as an engaging portion, which is engaged with a rotary tool such as an Allen wrench or an electrically operated tool. The socket opening 68 is, for example, a hexagonal hole. A turning tool engages with the socket opening 68 through the center hole 51 of the housing 50 one.

The click mechanism 40 will now be with reference to the 7 to 9 described.

The click mechanism 40 is between the shaft 20 and the disc 30 arranged. The click mechanism 40 is designed to cause a relative rotation of the disc 30 and the wave 20 to allow when a torsional moment exceeds a torque amount or when a rotational resistance (described below) between the disc 30 and the wave 20 is produced. The click mechanism 40 The first embodiment is characterized by a plurality of first click elements 64 , which on the version 60 are formed, a plurality of second click element 56 which are in the housing 50 are formed and the Beaufschlagglied 70 educated.

The first click elements 64 are a variety of protrusions which on an outer flange 66 the version 60 are formed at equal angular intervals about the shaft axis AX. Each of the projections includes a first inclined surface 46a , a second inclined surface 46b as well as a peak or vertex 64c which is between the first inclined surface 64a and the second inclined surface 64b is trained. The first and second inclined surfaces 64a and 64b of the first embodiment are at the same angle with respect to the outer flange 66 the version 60 inclined. The first and second inclined surfaces 64a and 64b can be inclined at different angles. Although the first and second inclined surfaces 64a and 64b In the first embodiment, the first and second inclined surfaces may be flat 64a and 64b be bent. Although the first click element 64 the first embodiment is a rib-like elongated projection, the first click element 64 a tapered projection having a tip or a hemispherical projection.

The second click elements 56 are a variety of recesses, which on the inner flange 54 of the housing 50 are formed at equal angular intervals about the shaft axis AX. Each of the recesses includes a third inclined surface 56a , a fourth inclined surface 56b and a reason 56c which is between the third inclined surface 56c and the fourth inclined surface 56b is trained. The third and fourth inclined surfaces 56a and 56b are at the same angle with respect to the inner flange 54 of the housing 50 inclined. The third and fourth inclined surfaces 56a and 56b can be inclined at different angles. The third and fourth inclined surfaces 56a and 56b can be flat or bent. Although the second click element 56 the first embodiment is a gang-like recess, the second click element 56 to be a dimple.

As in 9 shown, acts on the Beaufschlagglied 70 which is in the shaft opening 22c recorded, the version 60 to the housing 50 in the axial direction. The driver 70 is, for example, a compression coil spring. If the driver 70 the version 60 acted upon in the axial direction, engages each of the first click elements 64 with one of the second click elements 56 one.

The operation of the click mechanism 40 will now be with reference to the 10 and 11 described.

The present invention defines the respective positions of the wheel securing axle 10 in the 10 and 11 as a normal position and as a switched position. At the normal position, shown in 10 , grab the tips 64c the first click elements 64 into the basic pages 56c the second click elements 56 one. At the switched position, shown in 11 , touch the tips 64c the first click elements 64 one border each of adjacent second click elements 56 , The driver 70 allows the version 60 in the shaft opening 22c between the normal position ( 10 ) and the switched position ( 11 ) only to move in the axial direction by a click joint SL. The click mechanism 40 has a torque amount or a rotational resistance in accordance with, for example, the geometry of the click elements 56 and 64 on and the elastic return coefficient (spring constant) of the Beaufschlaggliedes 70 ,

As a user or user, for example, who is a driver or a repairer, the Radsicherungsachse 10 on the bicycle frame 100 to back up. The user leaves a turning tool with the socket opening 68 through the center hole 51 of the housing 50 intervene and turn the socket 60 with the turning tool. The rotation of the socket 60 turns the shaft 20 and pulls the threaded distal section 14 the wheel lock axle 10 in the female threaded through hole 102b the hub support 100b firmly.

At least if the disc 30 not in contact with the specified area 104 of the bicycle frame 100 stands, turns the socket 60 and the case 50 not and the click mechanism 40 does not generate clicks. Consequently, the shaft is turning 20 and the disc 30 integral with each other.

If the not smooth surface 34 the disc 30 in contact with the specified area 104 of the bicycle frame 100 stands, generates the wheel lock axle 10 an axial force or a tightening force and the torsional moment between the disc 30 and the wave 20 increases. If the torsional moment the amount of torque of the click mechanism 40 exceeds, turn the socket 30 and the case 50 relative and the click mechanism 40 generates click. Although the wave 20 continues to rotate around the shaft axis AX holds the click mechanism 40 the disc 30 in terms of the specified area 104 not rotatable. This prevents or reduces the damage caused by a rotation of the disc 30 in the specified area 104 would be generated when securing the wheel lock axle 10 on the bicycle frame 100 ,

When the relative rotation of the disc 30 and the wave 20 occurs, the click mechanism generates 40 Click or click. A user may choose a next or appropriate tightening torque based on the clicks generated by the click mechanism 40 or recognize the number of clicks.

A situation in which the user or user the wheel lock axle 10 from the bicycle frame 100 triggers or removes, will now be described below. In an initial stage, in which the wheel lock axle 10 is solved, the user uses a turning tool to the socket 60 (and wave 20 ) to rotate with a relatively high torque. In this case, the click mechanism generates 40 continuous clicks. The click mechanism 40 holds the disc 30 from rotating if the non-smooth surface 34 the disc 30 in contact with the specified area 104 of the bicycle frame 100 stands / passes. This prevents or reduces the damage to the specified area 104 , caused by the rotation of the disc 30 ,

The rotation of the shaft 20 reduces the axial force or that the tightening force of the wheel lock axle 10 and the torsional moment between the disc 30 and the wave 20 , If the not smooth surface 34 the disc 30 no longer with the specified area 104 of the bicycle frame 100 engaged, the click mechanism stops 40 Click to generate. The disc 30 and the case 50 turn integral with the shaft 20 and the version 60 , This allows the wheel lock axle 10 from the bicycle frame 100 to remove without or in particular without the disc 30 with regard to the wave 20 to solve.

• (1) Die Radsicherungsachse beinhaltet die Welle 20, welche den ersten Endabschnitt 22, den zweiten Endabschnitt 24, welcher Gewinde beinhaltet, und die Wellenachse AX, die Scheibe 30, welche durch den ersten Endabschnitt 22 der Welle 20 drehgestützt, ist und den Klickmechanismus 40, welcher zwischen der Welle 20 und der Scheibe 30 angeordnet ist. Der Klickmechanismus 40 verhindert oder reduziert Schaden an der festgelegten Fläche 104, welche durch Drehung der Scheibe 30 verursacht wird. Zusätzlich erzeugt der Klickmechanismus 40 Klicks. Dieser ermöglicht dem Benutzer das nächste Festziehmoment zu kennen. Dies ermöglicht beispielsweise, wenn die Umgebung dämmrig ist oder wenn in einem dunklen Ort, muss der Nutzer nicht die Scheibe 30 sehen, um zu erkennen, dass die Scheibe 30 in Kontakt mit der festgelegten Fläche 104 ist, mittels Bezugnahme zu den Klickklängen oder Klickvibrationen des Klickmechanismus 40.
• (2) Die Radsicherungsachse 10 beinhaltet ein Gehäuse 50, welches an den ersten Endabschnitt 22 gekoppelt ist und zumindest einen Abschnitt der Scheibe 30 aufnimmt. Der Klickmechanismus 40 ist ausgestaltet, derart, dass die Welle 20 integral mit dem Gehäuse 50 und der Scheibe dreht, zumindest wenn die Scheibe 30 nicht in Berührung mit der festgelegten Fläche 104 steht/gelangt. In dieser Ausgestaltung erzeugt der Klickmechanismus 40 keinen Klick zumindest wenn die Scheibe 30 nicht in Berührung mit der festgelegten Fläche 104 steht/gelangt. Dies ermöglicht es dem Benutzer, zu erkennen zumindest ob oder nicht die Scheibe 30 nicht in Berührung mit der festgelegten Fläche 104 ist.
• (3) Die Welle 20 beinhaltet die Wellenöffnung 22c, welche in der Endfläche 22a des ersten Endabschnittes 22 ausgebildet ist. Die Radsicherungsachse 10 beinhaltet die Fassung 60, welche in die Wellenöffnung 22c gepasst ist. Der Klickmechanismus 40 beinhaltet zumindest ein erstes Klickelement 64, welches an einem von der Fassung 60 und dem Gehäuse 50 ausgebildet ist, zumindest ein zweites Klickelement 56, welches an dem anderen von der Fassung 60 und dem Gehäuse 50 ausgebildet ist und das Beaufschlagglied 70. Das Beaufschlagglied 70 ist in der Wellenöffnung 22c angeordnet und beaufschlagt die Fassung 60 hinzu dem Gehäuse 50 in der Axialrichtung, derart, dass das erste Klickelement 64 in Eingriff mit dem zweiten Klickelement 56 steht/gelangt. In dieser Ausgestaltung erzeugt der Klickmechanismus 40 Klicke bzw. ein Klicken, wenn die Fassung 60 simultan dreht und sich in die Axialrichtung bewegt.
• (4) Die Fassung 60 beinhaltet die Fassungsöffnung 68 und den Außenflansch 66. Das Gehäuse 50 beinhaltet den Innenflansch 54, welcher die Zentrierbohrung 51 beinhaltet, welche es einem Drehwerkzeug ermöglicht physisch auf die Fassungsöffnung 68 zu zugreifen. Die ersten Klickelemente 64 und die zweiten Klickelemente 56 sind jeweils an dem Außenflansch 66 der Fassung 60 und an dem Innenflansch 54 des Gehäuses 50 ausgebildet. In dieser Struktur stabilisiert eine flache Fläche zwischen den ersten Klickelementen 64 des Außenflansches 66 die Drehung der Fassung 60. Zusätzlich erzeugt der Klickmechanismus 40 Klicks in der Nähe eines Drehwerkzeugs. Dies ermöglicht es dem Benutzer direkt und sensitiv die Klicks des Klickmechanismus 40 zu spüren.
• (5) Die ersten Klickelemente 64 sind Vorsprünge, welche um die Wellenachse AX mit gleichen Winkelabständen ausgebildet sind. Jeder der Vorsprünge beinhaltet die erste geneigte Fläche 64a und die zweite geneigte Fläche 64b, welche um den gleichen Winkel geneigt sind oder um unterschiedliche Winkel geneigt sind. Die Spitze 64c ist zwischen der ersten und zweiten geneigten Fläche 64a und 64b ausgebildet. Diese Struktur ermöglicht eine Erhöhung der Zahl von Klicks des Klickmechanismus 40 pro Drehung der Welle 20. Zusätzlich kann der Drehmomentbetrag des Klickmechanismus 40 konstant sein ungeachtet der Drehrichtung der Welle 20 oder variiert werden entsprechend mit der Drehrichtung der Welle 20.
• (6) Die zweiten Klickelemente 56 sind Aussparungen, welche um die Wellenachse AX mit gleichen Winkelabständen ausgebildet sind. Jede der Aussparungen beinhaltet dritte geneigte Flächen 56a und die vierten geneigten Flächen 56b, welche um den gleichen Winkel geneigt sind oder um unterschiedliche Winkel geneigt sind. Die Grundseite 56c ist zwischen der dritten und vierten geneigten Fläche 56a und 56b ausgebildet. Diese Struktur ermöglicht eine Erhöhung in der Zahl von Klicks des Klickmechanismus 40 pro Drehung der Welle 20. Zusätzlich kann der Drehmomentbetrag des Klickmechanismus 40 konstant gehalten werden ungeachtet der Drehrichtung der Welle 20 oder variiert werden entsprechend mit der Drehrichtung der Welle 20.
• (7) Wenn die Scheibe 30 in Berührung mit der festgelegten Fläche 102 des Fahrradrahmens 100 ist, ist die Fassung 60 in der Axialrichtung relativ zu der Welle 20 beweglich. Obwohl Vibrationen des Fahrradrahmens 100 direkt an die Scheibe 30 von der festgelegten Fläche 104 betragen wird, absorbiert die Bewegung der Fassung 60 in der Axialrichtung einige der Vibrationen. Folglich reduziert der Klickmechanismus 40 die Vibration, welche an die Welle 20 übertragen wird und schränkt ein Lösen der Welle 20 ein.
• (8) Zumindest wenn die Scheibe 30 nicht in Berührung mit der festgelegten Fläche 104 steht/gelangt, sind die Scheibe 30, das Gehäuse 50 und die Fassung 60 integral in der Axialrichtung relativ zu der Welle 20 beweglich. In dieser Struktur, wenn ein Stoß in der Axialrichtung auf die Welle 20 oder das Gehäuse trifft, wird der Stoß teilweise durch die Axialbewegung der Welle 20 relativ durch die Teilmenge der Scheibe 30, des Gehäuses 50 und der Fassung 60 absorbiert. Dies reduziert den Schaden an der Radsicherungsachse 10.
• (9) Die Welle 20 beinhaltet die Wellenumfangsfläche 26, welche die Scheibe 30 in einer beweglichen Weise in der Axialrichtung stützt und den Scheibenstopper 22b, welcher von der Wellenumfangsfläche 26 in der radialen Auswärtsrichtung vorspringt und die Bewegung der Scheibe 30 in der Axialrichtung durch Berührung der Scheibe 30 in der Axialrichtung einschränkt. Der Klickmechanismus 40 beinhaltet das Beaufschlagglied 70, welches eine elastische Rückstellkraft in der Axialrichtung erzeugt. Wenn die Scheibe 30 in Berührung mit der festgelegten Fläche 104 steht/gelangt, ermöglicht es die elastische Rückstellkraft dem Scheibenstopper 22b relativ zu der Scheibe 30 zu drehen, während dieser die Scheibe 30 berührt. In dieser Struktur stabilisiert die Rückstellkraft des Beaufschlaggliedes 70 die Relativdrehung der Scheibe 30 und des Scheibenstoppers 22b. Zusätzlich wird ein Lösen der Scheibe 30 von der Welle 20 verhindert.
• (10) Die Scheibe 30 ist schalen- bzw. bechergeformt und umgibt die Außenseite des Scheibenstoppers 22b. Diese Struktur verhindert oder reduziert die Bewegung der Scheibe 30 und verhindert das Eindringen von fremdem Material zwischen der Scheibe 30 und dem Scheibenstopper 22b.
• (11) Die Scheibe 30 beinhaltet die nicht glatte Fläche 34, welche die festgelegte Fläche 104 berührt und die glatte Fläche 32, welche den Scheibenstopper 22b berührt. Mit dieser Struktur unterbricht die glatte Fläche 32 der Scheibe 30 nicht die Drehung der Welle 20. Die nicht glatte Fläche 34 und die glatte Fläche 32 unterscheiden sich signifikant in dem Reibkoeffizient. Folglich stoppt die Scheibe 30 sofort die Drehung, wenn diese die festgelegte Fläche 104 berührt. Dies verhindert oder reduziert Schaden an der festgelegten Fläche 104, verursacht durch Drehung der Scheibe 30.
• (12) Die Radsicherungsachse 10 beinhaltet die Fassungsöffnung 68, welche in Kommunikation mit der Zentrierbohrung 51 des Gehäuses 50 steht und als ein Eingriffsabschnitt dient, welcher in Eingriff mit einem Drehwerkzeug steht. Diese Struktur reduziert den Luftwiderstand der Radsicherungsachse 10 im Vergleich mit einem Hebel-Typ Radsicherungsachse.
• (13) Das Beaufschlagglied 70 ist in der Wellenöffnung 22c angeordnet. Diese Struktur reduziert die Kopfdicke L1 (Bezug genommen auf 1) der Radsicherungsachse 10. Die Reduzierung der Kopfdicke L1 ist aus dem Blickwinkel der Luftwiderstand bevorzugt. Die Kopfdicke L1 ist 7,8 mm in der ersten Ausführungsform. Die Kopfdicke L1 kann geringer als 7,8 mm sein.

The first embodiment has the following advantages.

• (1) The wheel lock axle includes the shaft 20 which the first end portion 22 , the second end section 24 , which includes threads, and the shaft axis AX, the disc 30 passing through the first end section 22 the wave 20 rotatable, is and the click mechanism 40 which is between the shaft 20 and the disc 30 is arranged. The click mechanism 40 prevents or reduces damage to the specified area 104 , which by rotation of the disc 30 is caused. In addition, the click mechanism generates 40 Clicks. This allows the user to know the next tightening moment. This allows, for example, if the environment is dim or if in a dark place, the user does not need the disk 30 see to see that the disc 30 in contact with the specified area 104 is by reference to the click sounds or click vibrations of the click mechanism 40 ,
• (2) The wheel lock axle 10 includes a housing 50 , which at the first end portion 22 coupled and at least a portion of the disc 30 receives. The click mechanism 40 is designed such that the shaft 20 integral with the housing 50 and the disc is spinning, at least when the disc 30 not in contact with the specified area 104 stands / passes. In this embodiment, the click mechanism generates 40 no click at least if the disc 30 not in contact with the specified area 104 stands / passes. This allows the user to recognize at least whether or not the disc 30 not in contact with the specified area 104 is.
• (3) The wave 20 includes the shaft opening 22c which are in the end face 22a the first end portion 22 is trained. The wheel lock axle 10 includes the version 60 which is in the shaft opening 22c is fit. The click mechanism 40 includes at least a first click element 64 , which on one of the version 60 and the housing 50 is formed, at least a second click element 56 , which on the other of the version 60 and the housing 50 is formed and the Beaufschlagglied 70 , The driver 70 is in the shaft opening 22c arranged and acted upon the version 60 to the housing 50 in the axial direction, such that the first click element 64 in engagement with the second click element 56 stands / passes. In this embodiment, the click mechanism generates 40 Click or click if the socket 60 simultaneously turns and moves in the axial direction.
• (4) The version 60 includes the socket opening 68 and the outer flange 66 , The housing 50 includes the inner flange 54 , which the center hole 51 which allows a lathe tool physically to the socket opening 68 to access. The first click elements 64 and the second click elements 56 are each on the outer flange 66 the version 60 and on the inner flange 54 of the housing 50 educated. In this structure, a flat surface stabilizes between the first click elements 64 of the outer flange 66 the rotation of the socket 60 , In addition, the click mechanism generates 40 Clicks near a turning tool. This allows the user to directly and sensitively click the click mechanism 40 to feel.
• (5) The first click elements 64 are projections which are formed around the shaft axis AX at equal angular intervals. Each of the projections includes the first inclined surface 64a and the second inclined surface 64b , which are inclined at the same angle or inclined at different angles. The summit 64c is between the first and second inclined surface 64a and 64b educated. This structure allows an increase in the number of clicks of the click mechanism 40 per rotation of the shaft 20 , In addition, the amount of torque of the click mechanism 40 be constant regardless of the direction of rotation of the shaft 20 or varied according to the direction of rotation of the shaft 20 ,
• (6) The second click elements 56 are recesses which are formed around the shaft axis AX at equal angular intervals. Each of the recesses includes third inclined surfaces 56a and the fourth inclined surfaces 56b , which are inclined at the same angle or inclined at different angles. The basic page 56c is between the third and fourth inclined surface 56a and 56b educated. This structure allows an increase in the number of clicks of the click mechanism 40 per rotation of the shaft 20 , In addition, the amount of torque of the click mechanism 40 be kept constant regardless of the direction of rotation of the shaft 20 or varied according to the direction of rotation of the shaft 20 ,
• (7) If the disc 30 in contact with the specified area 102 of the bicycle frame 100 is, is the version 60 in the axial direction relative to the shaft 20 movable. Although vibrations of the bicycle frame 100 directly to the disc 30 from the specified area 104 will absorb the movement of the socket absorbs 60 in the axial direction some of the vibrations. Consequently, the click mechanism reduces 40 the vibration, which to the shaft 20 is transmitted and limits a release of the shaft 20 one.
• (8) At least if the disc 30 not in contact with the specified area 104 stands / reaches are the disc 30 , the case 50 and the version 60 integral in the axial direction relative to the shaft 20 movable. In this structure, when a shock in the axial direction on the shaft 20 or the housing hits, the impact is partially due to the axial movement of the shaft 20 relatively through the subset of the disk 30 , of the housing 50 and the version 60 absorbed. This reduces the damage to the wheel lock axle 10 ,
• (9) The wave 20 includes the wave peripheral surface 26 which the disc 30 supports in a movable manner in the axial direction and the disc stopper 22b , which of the wave peripheral surface 26 protrudes in the radial outward direction and the movement of the disc 30 in the axial direction by touching the disc 30 Restricts in the axial direction. The click mechanism 40 includes the driver 70 which generates an elastic restoring force in the axial direction. If the disc 30 in contact with the specified area 104 stands / passes, allows the elastic restoring force of the disc stopper 22b relative to the disc 30 to turn while this the disc 30 touched. In this structure, the restoring force of the Beaufschlaggliedes stabilized 70 the relative rotation of the disc 30 and the disc stopper 22b , In addition, a release of the disc 30 from the wave 20 prevented.
• (10) The disc 30 is cup-shaped and surrounds the outside of the disc stopper 22b , This structure prevents or reduces the movement of the disc 30 and prevents the ingress of foreign material between the disc 30 and the disc stopper 22b ,
• (11) The disc 30 includes the non-smooth surface 34 which the fixed area 104 touched and the smooth surface 32 which the disc stopper 22b touched. With this structure, the smooth surface interrupts 32 the disc 30 not the rotation of the shaft 20 , The not smooth surface 34 and the smooth surface 32 differ significantly in the coefficient of friction. Consequently, the disc stops 30 Immediately the rotation when this is the specified area 104 touched. This prevents or reduces damage to the specified area 104 , caused by rotation of the disc 30 ,
• (12) The wheel lock axle 10 includes the socket opening 68 which is in communication with the center hole 51 of the housing 50 stands and serves as an engaging portion, which is in engagement with a rotary tool. This structure reduces the air resistance of the wheel lock axle 10 in comparison with a lever-type wheel lock axle.
• (13) The impulse member 70 is in the shaft opening 22c arranged. This structure reduces the head thickness L1 (refer to FIG 1 ) of the wheel lock axle 10 , The reduction of the head thickness L1 is preferable from the viewpoint of air resistance. The head thickness L1 is 7.8 mm in the first embodiment. The head thickness L1 can be less than 7.8 mm.

A second embodiment of the wheel lock axle 10 will now be with reference to the 12 to 20 wherein the differences from the first embodiment are emphasized.

As in 12 shown, includes the wheel lock axle 10 the base section 12 and the threaded distal section 14 , As in 13 shown has the shaft opening 22c the wave 20 , which may be a hexagonal hole, functions as an engaging portion which engages a turning tool. The shaft opening 22c can be referred to as a built-in version. As in the 13 and 15 shown is the center hole 51 of the housing 50 not circular, for example, a hexagonal hole. A turning tool can be inserted into the shaft opening 22c through the center hole 51 of the housing 50 access or enter or intervene. The first end section 22 the wave 20 includes a mother 22d , The mother 22d is formed around the center hole 51 of the housing 50 to fit. Consequently, the housing rotates 50 integral with the shaft 20 ,

As in the 13 . 14 and 17 shown is the case 50 through the wave 20 is supported and is around the shaft axis AX together with or without the disc 30 rotatable. A cap 80 is to the wave 20 secured with a C-shaped ring, which is near the shaft opening 22c is coupled. The driver 70 is at an annular distance formed between the cap 80 and the housing 50 arranged. The driver 70 acts on the housing added to the disc 30 , such that the housing 50 in the axial direction relative to the disk 30 can move. The driver 70 can be a wavy spring.

The click mechanism 40 The second embodiment is as a plurality of first click elements 64 in which case 50 formed, a plurality of second click elements 56 , formed in the disc 30 , and the impulse member 70 educated.

Like in the 15 shown are the first click elements 64 a plurality of projections which on the inner flange 54 of the housing 50 are formed at equal angular intervals about the shaft axis AX. Each of the projections includes a first inclined surface 64a , a second inclined surface 64b as well as a tip 64c which is between the first inclined surface 64a and the second inclined surface 64b is trained. The first and second inclined surfaces 64a and 64b of the second embodiment are at different angles with respect to the inner flange 54 of the housing 50 inclined. The first and second inclined surfaces 64a and 64b of the second embodiment may be inclined by the same angle. Although the first and second inclined surfaces 64a and 64b In the second embodiment, the first and second inclined surfaces may be 64a and 64b be bent. Although the first click element 64 the second embodiment is a wave-like elongated projection, the first click element 64 a tapered projection having a tip or a hemispherical projection.

As in 16 shown, the edge includes 36 the disc 30 an end surface 36a on a side opposite to the non-smooth surface 34 , The end surface has a larger diameter than the smooth surface 32 , The second click elements 56 are a variety of recesses, which at the end face 36a the disc 30 are formed at equal angular intervals about the shaft axis AX. Each of the recesses includes a third inclined surface 56a , a fourth inclined surface 56b and a reason 56c which is between the third inclined surface 56a and the fourth inclined surface 56b is trained. The third and fourth inclined surfaces 56a and 56b are at different angles with respect to the end surface 36a the disc 30 inclined. The third and fourth inclined surfaces 56a and 56b can be inclined at the same angle. Although the third and fourth inclined surfaces 56a and 56b The second Embodiment are flat, the third and fourth inclined surfaces 56a and 56b be bent. Although the second click element 56 the second embodiment is a gang-like recess, the second click element 56 to be a dimple.

The click mechanism 40 The second embodiment generates clicks when the first click elements 64 over the second click elements 56 move as soon as the wave 20 rotates. In this case, the housing moves 50 in the axial direction against the Beaufschlagkraft the Beaufschlaggliedes 70 ,

The property of the click mechanism 40 to limit the release will now be with reference to the 18 and 19 described.

18 shows the wheel lock axle 10 which are not attached to the bicycle frame 100 is coupled. A gap is between the disk 30 and the disc stopper 22b educated. 19 shows the wheel lock axle 10 , which are attached to the bicycle frame 100 is coupled. The disc 30 is in contact with the disc stopper 22b and is between the disc stopper 22b and the specified area 104 of the bicycle frame 100 clamped. The condition of 19 is as a fixed state of the wheel lock axle 10 Are defined. If the wheel lock axle 10 is in the attached state, presses the urging force of the urging member 70 continuously the disc 30 in addition to the specified area 104 , In this way, the click mechanism prevents 40 or reduces spontaneous release of the wheel lock axle 10 ,

• (14) Die zweiten Klickelemente 56 sind an dem Rand 36 der Scheibe 30 ausgebildet. Diese Struktur ermöglicht eine Erhöhung der Zahl an zweiten Klickelementen 56. Ebenfalls kann der Abstand von der Wellenachse AX zu den zweiten Klickelementen 56 ausgedehnt werden. Dies erhöht den Freiheitsgrad zum Einstellen des Drehmomentbetrages oder der Drehwiderstand des Klickmechanismus 40.
• (15) Das Beaufschlagglied 70 beaufschlagt das Gehäuse 50 hinzu der Scheibe 30, derart, dass das Gehäuse 50 in der Axialrichtung relativ zu der Scheibe 30 bewegt werden kann. Diese Struktur ermöglicht es dem Gehäuse 50 und der Scheibe 30 in der Axialrichtung sich zu bewegen, derart, dass der Abstand zwischen dem Gehäuse 50 und der Scheibe 30 geringer wird, begegnend der Beaufschlagkraft des Beaufschlaggliedes 70. Dies verhindert oder reduziert das Lösen der Radsicherungsachse 10.
• (16) Das Gehäuse 50 ist um die Wellenachse AX zusammen mit oder ohne die Scheibe 30 drehbar. Diese Struktur hält die Scheiber 30 nicht gedreht, wenn das Gehäuse 50 integral mit der Welle 20 dreht. Dies verhindert oder reduziert einen Schaden an der festgelegten Fläche 104, verursacht durch Drehung der Scheibe 30.
• (17) Die Welle 20 beinhaltet die Wellenöffnung 22c, welche als eine eingebaute Fassung dient, welche in der Endfläche 22a des ersten Endabschnitts 22 ausgebildet ist. Diese Struktur ermöglicht eine Vergrößerung eines Innendurchmessers des Eingriffabschnittes, welcher mit einem Drehwerkzeug in Eingriff steht. Beispielsweise ist die Fassungsöffnung 68 der ersten Ausführungsform mit einem Drehwerkzeug von 4 mm im Durchmesser gedreht und die Wellenöffnung 22c der zweiten Ausführungsform wird mit einem Drehwerkzeug von 6 mm im Durchmesser gedreht. Die Fassungsöffnung 68 der ersten Ausführungsform kann mit einem Drehwerkzeug von 5 oder 6 mm im Durchmesser gedreht werden. Die Wellenöffnung 22c der zweiten Ausführungsform kann mit einem Drehwerkzeug von 5 oder 6 mm im Durchmesser gedreht werden.

The second embodiment has the following advantages in addition to the advantages of the first embodiment.

• (14) The second click elements 56 are on the edge 36 the disc 30 educated. This structure allows for an increase in the number of second click elements 56 , Also, the distance from the shaft axis AX to the second click elements 56 be extended. This increases the degree of freedom for adjusting the torque amount or the rotational resistance of the click mechanism 40 ,
• (15) The driver 70 acts on the housing 50 to the disc 30 , such that the housing 50 in the axial direction relative to the disk 30 can be moved. This structure allows the housing 50 and the disc 30 in the axial direction to move, such that the distance between the housing 50 and the disc 30 becomes smaller, meeting the impounding force of the impulse member 70 , This prevents or reduces the release of the wheel lock axle 10 ,
• (16) The case 50 is about the shaft axis AX together with or without the disk 30 rotatable. This structure holds the Scheiber 30 not turned when the case 50 integral with the shaft 20 rotates. This prevents or reduces damage to the specified area 104 , caused by rotation of the disc 30 ,
• (17) The wave 20 includes the shaft opening 22c , which serves as a built-in socket, which in the end face 22a of the first end section 22 is trained. This structure enables enlargement of an inner diameter of the engaging portion which is engaged with a rotary tool. For example, the socket opening 68 of the first embodiment with a turning tool of 4 mm in diameter rotated and the shaft opening 22c The second embodiment is rotated with a rotary tool of 6 mm in diameter. The socket opening 68 of the first embodiment can be rotated with a rotary tool of 5 or 6 mm in diameter. The shaft opening 22c of the second embodiment can be rotated with a rotary tool of 5 or 6 mm in diameter.

Only a few embodiments have been selected and described to illustrate the present invention. However, the present invention is not limited to the above embodiments (and one or more aspects of the embodiments). For example, the embodiment may be modified as follows.

As in 12 shown, can be an elastic element 16 to the second end portion 24 the wave 20 be arranged at one of the threaded distal end to a separation or release of the shaft 20 to prevent. The elastic element 16 has the maximum outer dimension or outer dimension, which is greater than the diameter of the second end portion 24 and may be elastically compressed to a compression dimension that is less than or equal to the diameter of the second end portion 24 , The elastic element 16 is for example an O-ring ( 20 ). In a modified example of 21 includes an elastic element 16a at least a thin plate spring 16b and a C-shaped ring 16c , The thin plate spring 16b includes a free end and a base end connected to the C-shaped ring 16c connected is. As in 22 shown is the thin plate spring 16b at the distal end of the wheel lock axle 10 arranged.

As in 23 the wheel lock axle can be shown 10 the embodiments and the modified example with a hub shaft 92 (Also referred to as a hollow hub shaft) and a hub shell 94 interact to make a bicycle arrangement 90 train. The hub shaft 92 having a hub axle HA is attached to the bicycle frame 100 through the wheel lock axle 10 secured. The hub shell 94 is through the hub shaft 92 secured and rotatable at least about the hub axis HA. The hub shaft 92 and the hub shell 94 may be known and will not be described in detail herein.

In the embodiments, the projections and recesses of the click mechanism 40 be interchanged with each other. For example, the first click elements 64 on the housing 50 and the second click elements 56 can on the socket 60 be educated. The same configuration can be applied to the second embodiment.

The number of first click elements 64 is not limited as long as there is at least one click element. The number of second click elements 56 is not limited as long as at least one click element is present. If one of the first click elements 64 and the second click elements 56 contains one element, it is preferred that the other includes more than one element.

A nut may be attached to the threaded second end portion 24 the wave 20 be attached. In this case, the hub can support 100b of the bicycle frame 100 a through hole instead of the internally threaded through hole 102 include.

The wave 20 The embodiment is a hollow body having a central passage. The wave 20 except the shaft opening 22c can be from a solid body.

The wheel lock axle 10 may be a front securing axle, which is used around a front hub shaft to the bicycle frame 100 or a rear securing axle, which is used around a rear hub axle to the bicycle frame 100 to secure.

The term "comprising" and its derivatives, as used herein, are to be understood as open terms that specify the presence of said features, elements, components, groups, integers, and / or steps. The foregoing also applies to words with similar meanings, such as the terms "having," "including," and their derivatives.

The term "touching" as used herein includes embodiments in which one element directly contacts another element, embodiments in which the element indirectly contacts another element by means of adhesive.

The term "part", "section", "section", "member" or "element" when used in the singular can be the plural meaning of a single part or a plurality of parts.

As used herein, the term "slanting", "slanting", "slanted" or "slanted" includes not only straight or linear configurations but also curved / curved / wavy configurations as long as such embodiments are inclined with respect to the baseline. The ordinal numbers such as "first" and "second" as cited in the present application are mere identifiers, but have no other meaning, for example, a particular order or the like. In addition, for example, the term "first element" itself does not imply the existence of a "second element" and the term "second element" itself does not imply the existence of a "first element" either.

The term "a" or "an" entity refers to one or more of this entity. As such, such as "on," "one or more," and "at least one," may be used interchangeably herein.

The terms "at least one," "one or more," and "and / or" are open-ended terms that may be used in both conjunctive and disjunctive in use. For example, the phrase "at least one of a, b and c", at least one of a, b or c "," one or more of a, b and c "," one or more of a, b, or c "and "A, b and / or c" are a alone, b alone, c alone, a and b together, a and c together, b and c together or a, b and c together.

It should be understood by those skilled in the art that the present invention may be embodied in a variety of other specific forms without departing from the scope of the invention. For example, some components disclosed in the embodiments (one or more aspects of the present embodiments) may be omitted or combined. The present examples and embodiments are to be considered as illustrative and not restrictive, and the invention is not to be limited to the details given herein, but may be modified within the scope and equivalents of the appended claims.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 6886894 [0003]

Claims (20)

Wheel securing axle comprising: a shaft including a first end portion, a second end portion including a thread, and a shaft axis; a disc which is rotationally supported by the first end portion of the shaft; and a click mechanism, which is arranged between the shaft and the disc. The wheel lock axle of claim 1, wherein the click mechanism is configured to allow the shaft to rotate about the shaft axis when the disc is in contact with a fixed surface and prevented from rotating relative to the fixed surface. A wheel lock axle according to claim 2, wherein the click mechanism is configured such that the wheel rotates integrally with the shaft, at least when the wheel is not in contact with the fixed surface. The wheel lock axle of claim 2 or 3, further comprising a housing coupled to the first end portion and receiving at least a portion of the disc, the click mechanism being configured such that the shaft rotates integrally with the housing and the disc, at least if the disc is not in contact with the specified surface. A wheel lock axle according to claim 4, wherein the click mechanism includes at least a first click element formed on one of the disk and the housing, at least one second click element formed on the other of the disk and the housing and a biasing member elastically urging the housing in addition to the disk in an axial direction such that the first click member elastically engages the second click element. The wheel lock axle according to claim 5, wherein the urging member urges the housing adjacent to the disc such that the housing is movable in the axial direction relative to the disc. A wheel lock axle according to claim 5 or 6, wherein the housing is supported by the shaft such that the housing is rotatable about the shaft axis together with or free from the wheel. The wheel lock axle according to any one of claims 5 to 7, wherein the shaft includes a shaft hole formed on an end surface of the first end portion, the wheel lock shaft further including a socket fitted in the shaft hole, and the click mechanism includes at least a first click element formed on one of the socket and the housing, at least one second click element formed on the other of the socket and the housing, and a bias member which is disposed in the shaft opening and the socket added to the housing in an axial direction acted upon, such that the first click element is in engagement with the second click element / arrives. The wheel lock axle of claim 8, wherein the socket is a cup-shaped socket that includes a socket opening and an outer flange, the housing includes an inner flange that includes a center hole that allows a rotary tool to physically access the socket opening, and wherein the at least one first Click element that at least one second click element are formed on the outer flange of the socket and on the inner flange of the housing. A wheel locking axle as claimed in claim 8 or 9, wherein the socket is moved in the axial direction relative to the shaft when the disc is in contact with the fixed surface. A wheel lock axle according to claim 8 or 9 or 10, wherein the disc, housing and socket are integrally movable in the axial direction relative to the shaft, at least when the disc is not in contact with the fixed surface. The wheel lock axle of any of claims 5 to 11, wherein the shaft includes a built-in socket formed on an end surface of the first end portion and the housing includes a center hole that allows a rotary tool to physically access the installed socket. A wheel lock axle according to any one of claims 2 to 12, wherein the shaft includes a shaft peripheral surface which supports the disc such that the disc is movable in the axial direction and a disc stopper which projects from the shaft peripheral surface in a radial outward direction and the movement of the disc in Limits the axial direction by touching the disc in the axial direction, wherein the click mechanism includes a Beaufschlagglied which generates an elastic repulsive force in the axial direction to allowing the disc stopper to rotate relative to the disc as it contacts the disc when the disc is in contact with the specified surface. A wheel lock axle according to claim 13, wherein the disc is a cup-shaped disc surrounding an outside of the disc stopper. A wheel locking axle according to claim 13 or 14, wherein the disc includes a non-smooth surface which contacts the fixed surface and a smooth surface which contacts the disc stopper. A wheel lock axle according to any one of claims 1 to 15, wherein said at least one first click member is formed of a plurality of protrusions formed at equal angular intervals around said shaft axis, each of said protrusions including first and second inclined surfaces which are the same Angle or different angles are inclined and a vertex formed between the first and second inclined surface. A wheel locking axle according to any one of claims 1 to 16, wherein the at least one second click member is formed of a plurality of recesses formed at equal angular intervals about the shaft axis, each of the recesses including third and fourth inclined surfaces which are the same angle or inclined at different angles and a ground formed between the third and fourth inclined surfaces. A wheel lock axle according to any one of claims 1 to 17, further comprising an elastic member disposed on the second end portion of the shaft adjacent to a thread distal side to prevent separation from the shaft, the elastic member having a maximum outer dimension, which is larger than a diameter of the thread and wherein the elastic member is capable of being elastically compressed to the diameter of the thread or less. Wheel lock axle according to one of claims 1 to 18, wherein the shaft is a hollow body which includes a central passage. Bicycle hub assembly comprising: the wheel securing axle according to one of claims 1 to 19; a hub shaft which includes a hub axle and which is secured to a bicycle frame by the wheel securing shaft; and a hub shell, which is supported by the hub shaft to be rotatable at least about the hub axle.

Images